Answer:
Clean rooms are used for biological research in order to prevent the research from contamination of other microorganisms.
Explanation:
Rooms were cleaned before any biological research in order to reduce the intervention of other microorganisms in the research and made the research proof from any impurities. These labs have high atmospheric pressure which decline the growth of microbes and the research will be done in a better way.
4 shows convention because the heat is coming from out of the ground into the atmosphere
The right option is; glucose
Glucose is the biological molecule that is smallest due to being a subunit rather than a macromolecule.
Glucose is a simple sugar (monosaccharide), a sub unit of carbohydrates. Glucose is the most significant energy source in all organisms. It is the most abundant carbohydrate and it is mainly present in foods rich in carbohydrates, such as rice, potatoes, and fruit. Glucose is also produced by plants and most algae during photosynthesis.
Squirrel.
reindeer.
tiger.
elephant.
lion.
fox.
rhino.
panda.
Etc.
I think the answer should be the second one
